Bryophyte Phylogeny Poster Systematics and Characteristics of Nonvascular Land Plants (Mosses, Liverworts, Hornworts) Bryophyte Phylogeny Poster Anacrogynous. Lvs in three rows (2 lateral, succubous, 1 dorsal lobule). Oil bodies scattered. Mucilage on ventral surface Central strand parenchymatous, with glomerophycotean fungus Di- or monoicous. Single S per gynoecium. Gemmae in axils of dorsal lobules Treubiales Treubiaceae Subterranean axis. Lvs mostly isophyllous. Rhizoids – Tracheophyte shoot calyptra + Central strand +, cells thin-walled, perforated Phylogeny Di- or monoicous. Gametangia lateral, bracts –. Seta +, massive Blepharoplast: lamellar strip and spline < 90 microtubules, aperture on left side. Several S/gynoecium Poster CAP 4-valved; walls unistratose. Elaterophore basal. Elaters filamentous. Asex. repro. – Haplomitriales Haplomitriaceae Thalli winged ("leafy"), 2 ventral scale rows. Air chambers –, gametangiophores – Ventral "auricles" with Nostoc. Dioicous. AN dorsal, solitary. AR dorsal, behind apex Angiosperm Blepharoplast: marchantialean. CAP 4(-6)-valved Elaters 2-helical. Elaterophore basal, rudimentary Phylogeny Gemmae receptacles flasked-shaped (unique in liverworts) Blasiales Blasiaceae Poster Air chambers +, chlorophyllose filaments – Rhizoids smooth Ventral scales +, appendages – MARCHANTIIDAE Archegoniophores branched Gemmae Neohodgsoniales Neohodgsoniaceae Liverworts Thalli rosettes or stems; axes: winged or lobes leaf-like Air chambers –, mucilage cells –, pores – AR and S in pear-shaped involucres (dorsal on thallus) thallose or foliose Rhizoids +, smooth rhizoids + Seta +, very short. CAP cleistocarpous. Elaters – Sphaerocarpales Riellaceae Sphaerocarpaceae oil bodies + Air chambers +. Air pores +. Chlorophyllose filaments +. Storage parenchyma + perforated water-conducting cells M Ventral scales +. Rhizoids +, pegged or smooth mycothallus with endophytic Glomeromycota A Antheridiophores +, archegoniophores +. AR ventral, involucre usu. + Aytoniaceae Cleveaceae Conocephalaceae Corsiniaceae gametangia protective structures + Pseudoperianths usu. –. Seta +, short. Cyathodiaceae Dumortieraceae Exormothecaceae Lunulariaceae gametangial ontogeny without apical cells R Elaters usu. 2-3-helical. Gemmae Marchantiales blepharoplast: plastid and associated posterior Marchantiaceae Monosoleniaceae Targioniaceae mitochondrion positioned at cell terminus C Thallus differentiated Air chambers +. Air pores +/–. Chlorophyllose filaments – zygote division transversal: Di- or monoicous Ventral scales +. Rhizoids + AN, AR dorsal, involucre +/–. S embedded or sessile epi- and hypobasal cells H CAP cleistocarpous. Elaters –, spores large (40-200 µm) CAP without columella Asex. repro. occ. by tubers Ricciaceae Oxymitraceae elaters (unicellular) A Ricciales stomata – Pelliaceae: Thallus. Branching pseudodichotomous. Di- or monoicus ca. 5,000 spp. N AN individual in covered chambers (dorsal). AR in distinct groups (dorsal). Involucre +, short-tubular or flaplike lunularic acid CAP with 4 valves. Elaterophores basal. Asex. repro. very rare T Noterocladaceae: Thalli leafy. Lvs succubous. Branching lateroventral. AN in ostiolate chambers. AR clustered, involucre + I CAP spheroidal. Seta +, <10 cm. Spores large (<100 µm), "multicellular", germination endosporic +/–. Elaterophores basal Pelliales Noterocladaceae Pelliaceae Thallose, leaflike lobes succubous, obliquely inserted O Rhizoids purplish (rarely pale brown) AN and AR in simple acropetal sequence P S protected by caudocalyx; CAP wall 2-6 stratose. Spores sculptured H Asex. repro. by fleshy stems (stolons), subterranean tubers, endogenous gemmae Fossombroniales Fossombroniaceae Petalophyllaceae PELLIIDAE Thallose or leafy, prostrate, erect or dendroid Y Central strand +, cells thick-walled, with pores AN/AR clustered dorsally on thallus T S protected by inner involucre or shoot calyptra Seta +, massive. CAP 2-14 valved, wall bistratose Pallavicinaceae A Pallaviciniales Foliose. Apical cell with 2 cutting faces (unique in leafy liverworts) Lvs bilobed, smaller leaf lobe usu. a complex water sac; trigones very large Evidence of zoophagy. Amphigastria – seta + Gametangiophores on short lateral-axillary branches, gynoecia partly sterile. Perianth elongate CAP spherical to short-ovoid. Germination endosporic. Epiphytic (mostly) Pleuroziales Pleuroziaceae thalloid or foliose Thalli linear, winged; branching dichotomous; midrib distinct (Metzgeriaceae) or thalli irregularly or lvs from 3 prim. initials pinnately branched (Aneuraceae). Central strand –. Unicellular hairs +/–. Oil bodies +/– or very small Di- or autoicous. Gametangia on short branches arising from midrib or reduced lateral branches Shoot calyptra +. Pseudoperianth –. Seta +. CAP 4-valved, elaterophore apical S METZGERIIDAE Elaters 1- or ehelical. Asex. repro. – or gemmae/adventive thalli/caducous branches Metzgeriales Aneuraceae Metzgeriaceae E Cauloid 1-3-pinnate. Rhizoids scarce Lvs incubous, transversely inserted, bilobed (and further subdivided); margins ciliate T Oil bodies 15-40/leaf cell. Amphigastria +, bilobed, ciliate Dioicous. Gametangiophores apically on shoot. Perianth bottle-shaped, perigynium – A CAP wall 4-7-stratose. Germination exo-/endosporic Ptilidiales Ptilidiaceae P Branches lateral, exogenous Lvs incubous, unequally 2-/3-lobed, often conduplicate bilobed, lobules often inflated water sacs H amphigastria +/–. S enclosed by a perianth and CY or shoot calyptra or stem perigynium Jubulaceae Frullaniaceae Lejeuneaceae Lepidolaenaceae foliose Germination endosporic Y lvs from 2 prim. initials Gemmae + (rare). Fungal endosymbionts – Porellales Porellaceae Radulaceae T Branches exo- or endogenous, ventral or lateral. Lvs succubous, incubous, or transverse, JUNGERMANNIIDAE undivided or variously lobed, s.t. conduplicate bilobed, but then usu. with the smaller Acrobolbaceae Balantiopsaceae Calypogeiaceae A lobe(s), or lobules, dorsal (inflated water sacs rare); amphigastria +/– S enclosed by a perianth or stem perigynium. Spore germination usu. exosporic Cephaloziaceae Cephaloziellaceae Geocalycaceae Gemmae +/–. Fungal endosymbionts + Jungermanniales Gymnomitriaceae Jungermanniaceae Lepidoziaceae Protonema –. Rhizoids –. Acrocarpous. Complex shoot system of rhizomatous axes, erect leafy shoots Lophoziaceae Scapaniaceae Trichocoleaceae Perforated water-conducting cells Dioicous. AN 1-2 in lvs axils of (3-)4-lobed lvs. AR solitary and scattered (1-4/shoot) S (only in T. ceratophylla, rarely encountered); stomata on S –. Seta persistent CAP twisted, dehisce along single slit. CY +. Asex. repro. by deciduous lvs or shoots Takakiales Takakiaceae Cladocarpous. Main stems with capitulum: central parenchyma, internal cylinder, cortex Branches fascicled, rarely –; retort cells +/–. Lvs with hyalocysts and chlorocysts Dioicous s.t. autoicous. AN single, subglobose, long-stalked in lvs axils AR terminal on short branches in capitulum. Spore sac dome-shaped Spores in tetrads, trilete mark +. CY +. Bogs and mires (peat mosses) Sphagnales Sphagnaceae Flatbergiaceae Ambuchananiaceae Mosses Central strand –. Lvs cells (rounded-)quadrate. Costa +/– homogeneous or – Autoicous, rarely syn- or dioicous. AN without specialized cap. Seta – CAP elevated by a pseudopodium; valves 4-10, attached at apex Spore sac dome-shaped. Germination endosporic. CY small, usu. bistratose Mostly cool-temperate and trop.-montane; saxicolous Andreaeaeales Andreaeaceae Central strand –. Lvs cells (rounded-)quadrate. Costa + Dioicous. Perichaetia developing after fertilization. AN without specialized cap B Seta short, massive. CAP valves irregular (often 4-5 main and 1-2 shorter ones), also separate at apex R Spore sac dome-shaped Germination endosporic. CY covering entire CAP Andreaeobryales Andreaeobryaceae Y Protonema thallose from filamentous chloronema. Plants scattered or in lax, pale green turfs. Central strand –.Axillary hairs club-shaped Lvs obovate-spathulate to orbicular, margins at base long-ciliate. Costa single, broad, homogeneous O Aut- or synoicous. Seta straight, succulent P CAP erect, symmetric; apophysis long-tapering, swollen, rugose; stomata many. Operculum conic. Annulus and PS –. CY cucullate Asex. repro. by multicellular axillary gemmae Oedipodiales Oedipodiaceae H Central strand +/–. Lvs cells parenchymatous. Costa +, homogeneous Y Autoicous. CAP erect, symmetric, cylindric, stomata +/–. Annulus – acro- Operculum +. PS of 4 teeth.CY small, mitrate, glabrous. Gemmae + (Tetraphis) Mostly northern-temperate, on various substrates in moist sites T carpous Tetraphidales Tetraphidaceae A Protonema short-lived or persistent. Subterranean root-like "rhizome". Central strand of hydroids and leptoids Costa complex (Polytrichum-type), often broad, with adaxial lamellae Dioicous, rarely autoicous. Perigonia often conspicuous (splash cups). Seta + CAP erect to horizontal, rounded or 2-4-angled; stomata +. PS of 16, 32 or 64 teeth, CAP with epiphragm. Spores small (up to 60x106/CAP) Oedipodiaceae Polytrichaceae protonema thallose; plant foliose CY mitrate or cucullate, hairy to glabrous often covering CAP. Largest terrestrial mosses Polytrichales lvs cells parenchymatous Protonema persistent. G reduced; ♂ of one leaf surrounding single AN rhizoids multicellular Lvs ecostate. Dioicous mycorrhiza – Seta +. CAP usu. asymmetric, flattened on upper side. Annulus +. Operculum + PS gametangial ontogeny PS of Buxbaumia-type; exostome + (short teeth in 1-4 rings); endostome + (membranaceous); parastome + (nemato- BUXBAUMIIDAE Buxbaumiaceae